[robterrell]

I don't know what exactly is being patented. As I read it, the novel part is this:

So, what about that arbitrary shader code? In practice, the shaders used in 2D games tend to be fairly simple. ZyGL applies a series of heuristics to the shader code to try to infer its intent. It then uses these heuristics to map the draw calls through to some approximations of common shader code that we wrote in JavaScript.

I'm not aware of any prior art that is (a) a polyfill for WebGL using canvas that also (b) reconstructs triangle strips into canvas quads and (c) attempts to mimic shader effects by scanning the shader code for common techniques.

[lunixbochs]

This is the first time someone's announced a patent for a space I'm in. I have no idea what implications this has for me, but I may have some prior art on "software rasterization of OpenGL code that only uses it for 2D", including quad recovery.